月曜解析セミナー Calderón–Zygmund decompositions in tent spaces and weak-type endpoint bounds for two quadratic functionals of Stein and Fefferman-Stein

開催日時

2019年2月18日 16時30分 ～ 2019年2月18日 18時00分

場所

理学部3号館210

講演者

Yi Huang（Nanjing Normal University）

We prove some Calderón-Zygmund type decompositions for functions in the tent spaces introduced by Coifman, Meyer and Stein. These decompositions will be useful in the operator theory on tent spaces developed in the author’s 2015 thesis. As an application of these decompositions to the study of quadratic functionals on tent spaces, we give a unified proof for tent space generalizations of C. Fefferman’s endpoint weak-type estimates for grand square functions and of C. Fefferman and Stein’s endpoint weak-type estimates for box maximal functions.